Sony LC-60 SLH is a 60-minute Elcaset blank analog audio tape utilizing Type I / Ferric Super Low-Noise High-Output (SLH) formulation. Measuring significantly larger than a standard compact cassette, it features a 175-meter tape length (30 minutes per side) and runs at a faster speed exclusively inside specialized Elcaset decks. [1, 2, 3, 4]
Key Specifications
- Format Type: Elcaset (Large-format audio cassette, roughly the size of a small videotape)
- Tape Formulation: Type I / Ferric (SLH - Super Low-Noise / High-Output)
- Recording Capacity: 60 minutes total (30 minutes per side)
- Equalization: 120 µs [1, 2, 3, 4]
Format Background & Compatibility
- Incompatible with Standard Decks: It will not fit or play in standard compact cassette recorders. It requires dedicated Elcaset players (such as Sony's vintage decks from the late 1970s). [1, 2]
- Design Purpose: Introduced in 1976 by Sony, Panasonic, and Teac, the Elcaset format combined the physical convenience of a cassette with the high audio bandwidth and performance of reel-to-reel tape systems. [1, 2]
- Rarity: Commercial production ended shortly after launch due to high costs and large unit sizes, making surviving factory-sealed LC-60 SLH tapes rare collectable items today